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package crypto |
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import "sync" |
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const DefaultBcryptCost = 10 |
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// HelperSingleton is the struct that holds the crypto helper. |
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type HelperSingleton struct { |
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cryptoHelper Crypto |
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} |
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var ( |
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once sync.Once //nolint:gochecknoglobals //Singleton |
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instance *HelperSingleton //nolint:gochecknoglobals //Singleton |
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) |
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func GetCryptoHelperInstance() *HelperSingleton { |
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once.Do(func() { |
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instance = &HelperSingleton{ |
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cryptoHelper: Crypto{ |
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Crypto: NewBcryptCrypto(DefaultBcryptCost), |
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}, |
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} |
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}) |
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return instance |
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} |
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func (c *HelperSingleton) GetCryptoHelper() Crypto { |
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return c.cryptoHelper |
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} |
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func (c *HelperSingleton) SetCryptoHelper(crypto ICrypto) { |
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c.cryptoHelper.Crypto = crypto |
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} |
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// ICrypto is the interface for the crypto methods |
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// It's used to abstract the crypto methods used in the application |
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// so that they can be easily swapped out if needed. |
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type ICrypto interface { |
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// Hash hashes a password using the configured crypto method |
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Hash(password string) ([]byte, error) |
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// Verify compares a crypto hashed password with its possible plaintext equivalent |
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Verify(password string, hash []byte) (bool, error) |
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} |
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// Crypto is the struct that holds the crypto methods. |
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type Crypto struct { |
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Crypto ICrypto |
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} |
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// Hash hashes a password using the configured crypto method |
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// password is the plaintext password to hash. |
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// Returns the hashed password, or an error on failure. |
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func (c Crypto) Hash(password string) ([]byte, error) { |
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return c.Crypto.Hash(password) |
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} |
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// Verify compares a crypto hashed password with its possible plaintext equivalent |
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// password is the plaintext password to verify. |
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// hash is the bcrypt hashed password. |
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// Returns nil on success, or an error on failure. |
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// Returns true if the password matches, false if it does not. |
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func (c Crypto) Verify(password string, hash []byte) (bool, error) { |
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return c.Crypto.Verify(password, hash) |
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} |
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memnix /
memnix-rest
